Acid Reflux Symptoms: Signs, Triggers and Relief

What does acid reflux feel like?

A ring of muscle at the bottom of the esophagus, the lower esophageal sphincter, normally closes after food passes into the stomach. When it relaxes at the wrong time or is weak, acid escapes upward. Typical symptoms:

• Heartburn: a burning pain or discomfort behind the breastbone, often rising toward the throat. It is worse after eating, when lying down or bending over.
• Regurgitation: sour or bitter fluid or food coming up into the throat or mouth without retching.
• Sour taste or "water brash," a sudden rush of saliva.
• Burping and bloating.
• Upper abdominal discomfort or a feeling of fullness.

Symptoms usually start within an hour of eating and can last a few minutes to a few hours.

Less obvious signs of acid reflux

Reflux that reaches the throat and airways can cause symptoms without heartburn, sometimes called silent reflux or laryngopharyngeal reflux:

• a chronic dry cough, especially at night or after meals
• hoarseness or frequent throat clearing
• a lump-in-the-throat feeling
• sore throat in the morning
• worsening asthma or wheezing
• dental erosion
• burning chest pain that can be mistaken for heart pain

Acid reflux at night

Lying flat lets acid flow back more easily, and swallowing, which clears acid, slows during sleep. Night reflux causes waking with coughing or choking, a sour taste in the morning and poor sleep. It is also linked to more damage to the esophagus.

What triggers acid reflux

A hiatal hernia, where the top of the stomach slides through the diaphragm, makes reflux much more likely. Our acid reflux condition page explains the underlying causes, GERD and its long-term complications.

Is it reflux or something else?

Doctors cannot reliably tell heart pain from reflux by description alone. If you are unsure, get checked, especially if you have heart risk factors.

When to see a doctor

See a primary care doctor if heartburn happens twice a week or more, if over-the-counter treatment is needed for more than 2 weeks, or if you have any of these warning signs: difficulty or pain swallowing, weight loss, vomiting, anemia, black stools or vomiting blood, or a family history of stomach or esophageal cancer. Warning signs usually lead to an upper endoscopy.

How to relieve acid reflux

Fast relief

• Antacids (calcium carbonate, magnesium or aluminum compounds) neutralize acid within minutes. Relief lasts 30 to 60 minutes.
• Alginates (such as Gaviscon) form a foam raft on top of the stomach contents, which is especially useful after meals and at bedtime.
• Stand or sit upright, loosen tight clothing and avoid bending.

Longer-lasting medicines

• H2 blockers such as famotidine reduce acid for up to 12 hours. They work within an hour and can be taken before a trigger meal.
• Proton pump inhibitors (PPIs) such as omeprazole, esomeprazole and lansoprazole are the strongest acid reducers. They work best taken 30 to 60 minutes before breakfast, and may take 1 to 4 days for full effect.

Follow the label dose. Over-the-counter PPIs are meant for 14-day courses. Talk to a doctor if you need them longer.

Lifestyle changes that work

• Eat smaller meals and stop eating 3 hours before lying down.
• Raise the head of your bed by 6 to 8 inches (15 to 20 cm) with blocks or a wedge. Extra pillows alone bend you at the waist and can make it worse.
• Sleep on your left side, which reduces night reflux.
• Lose weight if you are overweight. Even modest weight loss reduces symptoms.
• Stop smoking.
• Cut back on alcohol and identify your personal trigger foods rather than avoiding everything.

Reflux in pregnancy

Heartburn affects many pregnant people, especially in the third trimester. Small meals, staying upright after eating and calcium-based antacids or alginates are first-line. Ask your prenatal provider before using other medicines.

Frequently asked questions

What are the first signs of acid reflux?

The first signs are usually a burning feeling behind the breastbone after eating, a sour or bitter taste in the mouth, and burping. Some people first notice a cough, hoarseness or a feeling of a lump in the throat, especially after meals or at night.

How long do acid reflux symptoms last?

An episode of heartburn usually lasts from a few minutes to a few hours, often easing as the stomach empties. Symptoms that return regularly, twice a week or more, suggest GERD and usually need ongoing treatment and a doctor's review.

What gets rid of acid reflux fast?

Antacids and alginates give the fastest relief, usually within minutes. Standing upright, loosening tight clothing and sipping water can also help. H2 blockers act within an hour, while proton pump inhibitors take longer but control symptoms better for frequent reflux.

Can acid reflux cause chest pain?

Yes. Reflux can cause burning or squeezing chest pain that may feel like heart pain. Because the two are hard to tell apart, chest pain with breathlessness, sweating, nausea or pain spreading to the arm or jaw should be treated as a heart emergency.

Does drinking milk help acid reflux?

Milk may soothe briefly, but its fat and protein stimulate more acid production, so symptoms can return or worsen afterward. Water, an antacid or an alginate are better choices for quick relief.

Can stress cause acid reflux?

Stress does not directly increase acid much, but it can make you more sensitive to reflux and more aware of symptoms. It also leads to habits that worsen reflux, such as late meals, alcohol, smoking and poor sleep.